Exactly my thoughts. Only one JS framework of that size. You'll probably include a few more JS (analytics and what not)... no wonder my "unlimited but limited" mobile plan is hitting the limit every month.
Even though you always hear about the mobile web, web devs simply aren't trying hard enough to make the mobile web experience pleasant. They'd rather complain about mobile safari or mobile chrome than actually look at their own product.
(Yes, this is a generalization, but generally, the mobile web sucks.)
You're barking up the wrong tree my friend.